Effect of Mineral Acids on Rooting Response of Aging Mung Bean （Phaseolus aureus Roxb,） Cuttings via Indole Acetic Acid Level
Effect of Mineral Acids on Rooting Response of Aging Mung Bean （Phaseolus aureus Roxb,） Cuttings via Indole Acetic Acid Level
摘要
The influence of nitric acid （HNO3） as a strong mineral acid on rooting response of fresh mad aging mung bean cuttings has been studied on the level of Indole-3-Acetic Acid （IAA）. The data revealed significant increase in rooting response of fresh cuttings treated with （0.0001% and 0.1%） concentrations of HNO3 solution, significant increase in rooting response of aged cuttings （for 3 days in d/H20） with （0.0001% and 0.01%） concentration of HNO3 solution and highly significant increase in rooting response of aged cuttings （for 3 days in HNO3 solution） with （0.0001%） concentration, while highly concentration （0.5%） revealed highly significant decrease in rooting response compared to control （d/H20）. Quantitative estimation oflAA by spectrophotometric method as indicators for oxidative processes that occurrence during aging phenomenon verified a highly significant increase of IAA content in hypocotyles of fresh and aged cuttings in optimal concentration of HNO3.
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